Antonio Road BESS (ERCOT-27INR0090) — Project Summary

Queue ID
ERCOT-27INR0090
Capacity
155.52 MW
Technology
Battery
Status
active
Location
Bastrop, TX
Region
ERCOT
Developer
Tempus Power management LLC
IA Status
Facility Study

Antonio Road BESS

ERCOT-27INR0090BetaActiveBatteryERCOTLBNL + Live

155.52 MW storage in Bastrop, TX · In queue since October 2023 · Proposed COD June 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

155.52 MW

Capacity

1

Components

Battery

2y 9m

In Queue

Facility Study

IA Phase

COD target: 2027

Interconnection

Total Duration

3y 8m

Facilities Study50%
Queue EntryOct 13, 2023

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2027-06-01

Cross-source intelligence
Beta
Low confidence·3 sources·as of 2026-06-01
Expected COD
2027-06-01
From queue filing
Developer
Tempus Power Management LLC
From queue filing
Status
Active
Active — Facility Study stage per LBNL queue, no construction or financing announcements found
Financing
Unannounced
Key milestones
IA executedOct 2023Most recent

Queue application submitted to ERCOT, assigned ID 27INR0090

source
About

The Antonio Road BESS project is a proposed 155.52 MW battery storage project located in Bastrop County, Texas. Developed by Tempus Power Management LLC, the project is currently active in the ERCOT interconnection queue as entry ERCOT-27INR0090, with a queue entry date of October 13, 2023. The proposed commercial operation date is June 1, 2027.

The project's interconnection status is currently in the Facility Study phase. The point of interconnection (POI) is the Paige 138kV bus number 7308, connecting to the existing substation via the addition of a breaker. The Antonio Road BESS project has appeared in recent news coverage.

Generated from interconnection queue and public data sources

Development Risk

Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)
Withdrawal probability vs cohort
IA cluster risk
Project Details

State

TX

County

Bastrop

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Tempus Power management LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Paige 138kV, bus 7308, connecting to the existing substation via adding a breaker

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

P50 conditioned on COD
Capacity factor vs cohort
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

Revenue conditioned on COD
Financing close risk
Cohort DSCR comparison
Market Context
Approximate
ISO / RTO
ERCOT
Trading Hub
HB_NORTH
Hub Confidence
LOW

This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.

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InfraSure platform

Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.